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If you want to operate an led bulb with a 12V battery as a single source...

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Electrical Engineering

If you want to operate an led bulb with a 12V battery as asingle source using an NPN transistor as a switch and amicroprocessor controller (such as Arduino), draw a circuit diagramfor this setup, label all components and describe yourapproach.

Answer & Explanation Solved by verified expert
3.7 Ratings (643 Votes)
I will give you an general approach of using NPN transistor as aswitch and a microprocessor controllerHere 12V source is connected for powering Microprocessor as wellas Vcc for Transistor Transistor acts as a switch through    See Answer
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